94c7cfaf87d4cd8fbb8be2dd29a7811ad45cfca1d9971a5aba0b607f07c46f05

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2024 10:43

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General

Target

2024-02-18_dc9cf1d8656437e542851ef8eacac0ab_cryptolocker.exe
Size

78KB
MD5

dc9cf1d8656437e542851ef8eacac0ab
SHA1

01b0e07a1ed2dfb81d33f7b451f4d2d5475ea5c7
SHA256

94c7cfaf87d4cd8fbb8be2dd29a7811ad45cfca1d9971a5aba0b607f07c46f05
SHA512

04db85fe2a66dc65c7464d903eb32b35588c46d1e97dd36c6b76ed5be2b29b37e60584e585f78444516be4f998e59b8bc379130a7654a00602c33652fa57f306
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuf6:vCjsIOtEvwDpj5H9YvQd22

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f5-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f5-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-18_dc9cf1d8656437e542851ef8eacac0ab_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4992	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1356 wrote to memory of 4992	1356	2024-02-18_dc9cf1d8656437e542851ef8eacac0ab_cryptolocker.exe	83
PID 1356 wrote to memory of 4992	1356	2024-02-18_dc9cf1d8656437e542851ef8eacac0ab_cryptolocker.exe	83
PID 1356 wrote to memory of 4992	1356	2024-02-18_dc9cf1d8656437e542851ef8eacac0ab_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-18_dc9cf1d8656437e542851ef8eacac0ab_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_dc9cf1d8656437e542851ef8eacac0ab_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1356
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
78KB

MD5
b7a42f44a80ae09deb0faa0b0cd2607d

SHA1
d01b9055e42155852e3991fa1a8578edeeacd0e2

SHA256
227053b39cee2a3f5d167ccf0d25c76750c26b0fa9ba79102fb79fa01dc8bf95

SHA512
de63287d64bb482a395a1d3ee67027f17ff7c2489f15a13dce1f398a19150087fe7a10fa539d619e5e797c422b7352370ca587c5f930b44d7ba4495f43d98171

Download Submit
memory/1356-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1356-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1356-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4992-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4992-19-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download